Under the 'Firewalls' subheading, ensure the checkboxes are deselected. Under 'Network tags', ensure that the default tags are removed. These tags should be replaced with at least one firewall rule of your own.

Hit 'Save' at the bottom of the page

Hosted on Azure

For users with instances hosted on Microsoft Azure, the 'Publicly Available' warning can be addressed by ensuring the Network Security Group (NSG) associated with the Virtual Machine does not have HTTP or HTTPS sources set to Any.

2. Click All Services from the main menu. From the Services screen, select Network Security Groups (not Classic).

3. Select the NSG associated with your Matillion ETL Virtual Machine. The NSG is created when the VM is created and thus they will share a name.

4. Now in the screen for your NSG, locate the HTTP and HTTPS Inbound Security Rules.

5. If either of these are set to Any then your instance is publicly available and will receive the Notice inside the client.

6. Click the appropriate Inbound Security Rule and in the blade that appears, edit the Source to anything other than Any. It is common for Matillion ETL instances to be configured such that only select IP addresses can access the instance.